I also believe that you will need good water for it to last awhile,so if you have city water maybe its better than having well water.At work I know the plumbers have to replace them after just couple yrs of use due to the water condition
Contributor
I also believe that you will need good water for it to last awhile,so if you have city water maybe its better than having well water.At work I know the plumbers have to replace them after just couple yrs of use due to the water condition
Contributor
Coming from the off-grid community. The problem is on-demand electrics are cheap. All you need is a reasonably efficient heat exchanger and a large enough power source. 60-80 AMPS is minuscule for an electric on demand heater other than for one that will feed a single shower or single bathroom sink at a time. Its not uncommon for large electric on demand heaters to be in the hundreds of amps.
I would agree with others that a different heat source is needed. That said, when you move away from the simplicity of electric, you move into the cost and complexity of a combustion unity like a nat gas or a propane unit. Much less expensive to run but way higher up front cost, (fuel source, fuel lines, higher unit cost, flue cost and installation, and so on.
The only electric on demands that are worth while are for a small single bath or super small home which is on the grid and hence has access to very cheap electricity.
We have one of these in our shop and it performs perfectly. If no one is here, it doesnt run.
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Around here, you have to flush the tankless water heaters with vinegar once a year to clean out all the mineral deposits. Requires a pump and some hoses - not very expensive. Here's a web page that explains how to flush a tankless water heater. I did this page for my wife so that if I kick off unexpectedly, she'll know what to do.Originally Posted by Carroll Courtney
Mike
Go into the world and do well. But more importantly, go into the world and do good.
Moderator
I'm a tankless water heater fan and have two of them in our home...powered by natural gas. Endless hot water truly is a beautiful thing. The electric versions do work...in many parts of the world they are "standard", if you will, but yes, they do draw a bit of current when in actual operation. Why? Because the energy is needed to get the necessary temperature rise in the water while it's flowing.
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The most expensive tool is the one you buy "cheaply" and often...
Contributor
too bad water isn't magnetic
--that said, is induction heating used in electric water heaters?
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ELEVEN - rotary cutter tool machines
FOUR - CO2 lasers
THREE- make that FOUR now- fiber lasers
ONE - vinyl cutter
CASmate, Corel, Gravostyle
Contributor
No, it's resistance heating.too bad water isn't magnetic
--that said, is induction heating used in electric water heaters?
Mike
Go into the world and do well. But more importantly, go into the world and do good.
Member
Induction would be a solution to a non-existent problem. Induction burners transfer almost all of the electrical energy to the pot. Resistance burners loose a lot of energy that is not transferred to the pot. The electric elements in a water heater are completely surrounded by water so have near perfect efficiency.
Contributor
I have used both while living in Germany.
The primary bath used natural gas, and that thing would kick out an endless supply of scalding water no mater what.
We added a shower in a location without gas so we installed the largest electric one we could (I cannot remember what that translates into), but, in the winter, it was not possible to take a hot shower. In the winter, the water coming into the house was very cold. My point is that you also need to understand the minimum temperature of the water that will enter the tank and the desired temperature when it leaves. Be absolutely certain that you understand that before you install one of these.
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